asound.h 39 KB

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  1. /*
  2. * Advanced Linux Sound Architecture - ALSA - Driver
  3. * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@suse.cz>,
  4. * Abramo Bagnara <abramo@alsa-project.org>
  5. *
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20. *
  21. */
  22. #ifndef __SOUND_ASOUND_H
  23. #define __SOUND_ASOUND_H
  24. #ifdef __KERNEL__
  25. #include <linux/ioctl.h>
  26. #include <linux/types.h>
  27. #include <linux/time.h>
  28. #include <asm/byteorder.h>
  29. #ifdef __LITTLE_ENDIAN
  30. #define SNDRV_LITTLE_ENDIAN
  31. #else
  32. #ifdef __BIG_ENDIAN
  33. #define SNDRV_BIG_ENDIAN
  34. #else
  35. #error "Unsupported endian..."
  36. #endif
  37. #endif
  38. #endif /* __KERNEL__ **/
  39. /*
  40. * protocol version
  41. */
  42. #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
  43. #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
  44. #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
  45. #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
  46. #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
  47. (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
  48. (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
  49. SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
  50. /****************************************************************************
  51. * *
  52. * Digital audio interface *
  53. * *
  54. ****************************************************************************/
  55. struct snd_aes_iec958 {
  56. unsigned char status[24]; /* AES/IEC958 channel status bits */
  57. unsigned char subcode[147]; /* AES/IEC958 subcode bits */
  58. unsigned char pad; /* nothing */
  59. unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */
  60. };
  61. /****************************************************************************
  62. * *
  63. * Section for driver hardware dependent interface - /dev/snd/hw? *
  64. * *
  65. ****************************************************************************/
  66. #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
  67. enum {
  68. SNDRV_HWDEP_IFACE_OPL2 = 0,
  69. SNDRV_HWDEP_IFACE_OPL3,
  70. SNDRV_HWDEP_IFACE_OPL4,
  71. SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */
  72. SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */
  73. SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */
  74. SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */
  75. SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */
  76. SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */
  77. SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */
  78. SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */
  79. SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
  80. SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */
  81. SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */
  82. SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */
  83. SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */
  84. /* Don't forget to change the following: */
  85. SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_SB_RC
  86. };
  87. struct snd_hwdep_info {
  88. unsigned int device; /* WR: device number */
  89. int card; /* R: card number */
  90. unsigned char id[64]; /* ID (user selectable) */
  91. unsigned char name[80]; /* hwdep name */
  92. int iface; /* hwdep interface */
  93. unsigned char reserved[64]; /* reserved for future */
  94. };
  95. /* generic DSP loader */
  96. struct snd_hwdep_dsp_status {
  97. unsigned int version; /* R: driver-specific version */
  98. unsigned char id[32]; /* R: driver-specific ID string */
  99. unsigned int num_dsps; /* R: number of DSP images to transfer */
  100. unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */
  101. unsigned int chip_ready; /* R: 1 = initialization finished */
  102. unsigned char reserved[16]; /* reserved for future use */
  103. };
  104. struct snd_hwdep_dsp_image {
  105. unsigned int index; /* W: DSP index */
  106. unsigned char name[64]; /* W: ID (e.g. file name) */
  107. unsigned char __user *image; /* W: binary image */
  108. size_t length; /* W: size of image in bytes */
  109. unsigned long driver_data; /* W: driver-specific data */
  110. };
  111. enum {
  112. SNDRV_HWDEP_IOCTL_PVERSION = _IOR ('H', 0x00, int),
  113. SNDRV_HWDEP_IOCTL_INFO = _IOR ('H', 0x01, struct snd_hwdep_info),
  114. SNDRV_HWDEP_IOCTL_DSP_STATUS = _IOR('H', 0x02, struct snd_hwdep_dsp_status),
  115. SNDRV_HWDEP_IOCTL_DSP_LOAD = _IOW('H', 0x03, struct snd_hwdep_dsp_image)
  116. };
  117. /*****************************************************************************
  118. * *
  119. * Digital Audio (PCM) interface - /dev/snd/pcm?? *
  120. * *
  121. *****************************************************************************/
  122. #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8)
  123. typedef unsigned long snd_pcm_uframes_t;
  124. typedef signed long snd_pcm_sframes_t;
  125. enum {
  126. SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */
  127. SNDRV_PCM_CLASS_MULTI, /* multichannel device */
  128. SNDRV_PCM_CLASS_MODEM, /* software modem class */
  129. SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */
  130. /* Don't forget to change the following: */
  131. SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
  132. };
  133. enum {
  134. SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
  135. SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */
  136. /* Don't forget to change the following: */
  137. SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
  138. };
  139. enum {
  140. SNDRV_PCM_STREAM_PLAYBACK = 0,
  141. SNDRV_PCM_STREAM_CAPTURE,
  142. SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
  143. };
  144. typedef int __bitwise snd_pcm_access_t;
  145. #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */
  146. #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
  147. #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */
  148. #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */
  149. #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */
  150. #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
  151. typedef int __bitwise snd_pcm_format_t;
  152. #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
  153. #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
  154. #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
  155. #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
  156. #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
  157. #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
  158. #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
  159. #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
  160. #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
  161. #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
  162. #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
  163. #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
  164. #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
  165. #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
  166. #define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
  167. #define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
  168. #define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
  169. #define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
  170. #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
  171. #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
  172. #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20)
  173. #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21)
  174. #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
  175. #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
  176. #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
  177. #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
  178. #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */
  179. #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */
  180. #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */
  181. #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */
  182. #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */
  183. #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */
  184. #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */
  185. #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */
  186. #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */
  187. #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */
  188. #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */
  189. #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */
  190. #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_U18_3BE
  191. #ifdef SNDRV_LITTLE_ENDIAN
  192. #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
  193. #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
  194. #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
  195. #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
  196. #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
  197. #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
  198. #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
  199. #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
  200. #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
  201. #endif
  202. #ifdef SNDRV_BIG_ENDIAN
  203. #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
  204. #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
  205. #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
  206. #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
  207. #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
  208. #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
  209. #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
  210. #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
  211. #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
  212. #endif
  213. typedef int __bitwise snd_pcm_subformat_t;
  214. #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
  215. #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
  216. #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */
  217. #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */
  218. #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */
  219. #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */
  220. #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */
  221. #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */
  222. #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */
  223. #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */
  224. #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */
  225. #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */
  226. #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */
  227. #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */
  228. #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */
  229. #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */
  230. typedef int __bitwise snd_pcm_state_t;
  231. #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */
  232. #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */
  233. #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */
  234. #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */
  235. #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
  236. #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */
  237. #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */
  238. #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */
  239. #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
  240. #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
  241. enum {
  242. SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
  243. SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
  244. SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
  245. };
  246. union snd_pcm_sync_id {
  247. unsigned char id[16];
  248. unsigned short id16[8];
  249. unsigned int id32[4];
  250. };
  251. struct snd_pcm_info {
  252. unsigned int device; /* RO/WR (control): device number */
  253. unsigned int subdevice; /* RO/WR (control): subdevice number */
  254. int stream; /* RO/WR (control): stream direction */
  255. int card; /* R: card number */
  256. unsigned char id[64]; /* ID (user selectable) */
  257. unsigned char name[80]; /* name of this device */
  258. unsigned char subname[32]; /* subdevice name */
  259. int dev_class; /* SNDRV_PCM_CLASS_* */
  260. int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */
  261. unsigned int subdevices_count;
  262. unsigned int subdevices_avail;
  263. union snd_pcm_sync_id sync; /* hardware synchronization ID */
  264. unsigned char reserved[64]; /* reserved for future... */
  265. };
  266. typedef int __bitwise snd_pcm_hw_param_t;
  267. #define SNDRV_PCM_HW_PARAM_ACCESS ((__force snd_pcm_hw_param_t) 0) /* Access type */
  268. #define SNDRV_PCM_HW_PARAM_FORMAT ((__force snd_pcm_hw_param_t) 1) /* Format */
  269. #define SNDRV_PCM_HW_PARAM_SUBFORMAT ((__force snd_pcm_hw_param_t) 2) /* Subformat */
  270. #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
  271. #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
  272. #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS ((__force snd_pcm_hw_param_t) 8) /* Bits per sample */
  273. #define SNDRV_PCM_HW_PARAM_FRAME_BITS ((__force snd_pcm_hw_param_t) 9) /* Bits per frame */
  274. #define SNDRV_PCM_HW_PARAM_CHANNELS ((__force snd_pcm_hw_param_t) 10) /* Channels */
  275. #define SNDRV_PCM_HW_PARAM_RATE ((__force snd_pcm_hw_param_t) 11) /* Approx rate */
  276. #define SNDRV_PCM_HW_PARAM_PERIOD_TIME ((__force snd_pcm_hw_param_t) 12) /* Approx distance between interrupts in us */
  277. #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE ((__force snd_pcm_hw_param_t) 13) /* Approx frames between interrupts */
  278. #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES ((__force snd_pcm_hw_param_t) 14) /* Approx bytes between interrupts */
  279. #define SNDRV_PCM_HW_PARAM_PERIODS ((__force snd_pcm_hw_param_t) 15) /* Approx interrupts per buffer */
  280. #define SNDRV_PCM_HW_PARAM_BUFFER_TIME ((__force snd_pcm_hw_param_t) 16) /* Approx duration of buffer in us */
  281. #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE ((__force snd_pcm_hw_param_t) 17) /* Size of buffer in frames */
  282. #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES ((__force snd_pcm_hw_param_t) 18) /* Size of buffer in bytes */
  283. #define SNDRV_PCM_HW_PARAM_TICK_TIME ((__force snd_pcm_hw_param_t) 19) /* Approx tick duration in us */
  284. #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
  285. #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
  286. #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */
  287. struct snd_interval {
  288. unsigned int min, max;
  289. unsigned int openmin:1,
  290. openmax:1,
  291. integer:1,
  292. empty:1;
  293. };
  294. #define SNDRV_MASK_MAX 256
  295. struct snd_mask {
  296. u_int32_t bits[(SNDRV_MASK_MAX+31)/32];
  297. };
  298. struct snd_pcm_hw_params {
  299. unsigned int flags;
  300. struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
  301. SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
  302. struct snd_mask mres[5]; /* reserved masks */
  303. struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
  304. SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
  305. struct snd_interval ires[9]; /* reserved intervals */
  306. unsigned int rmask; /* W: requested masks */
  307. unsigned int cmask; /* R: changed masks */
  308. unsigned int info; /* R: Info flags for returned setup */
  309. unsigned int msbits; /* R: used most significant bits */
  310. unsigned int rate_num; /* R: rate numerator */
  311. unsigned int rate_den; /* R: rate denominator */
  312. snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */
  313. unsigned char reserved[64]; /* reserved for future */
  314. };
  315. enum {
  316. SNDRV_PCM_TSTAMP_NONE = 0,
  317. SNDRV_PCM_TSTAMP_MMAP,
  318. SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_MMAP,
  319. };
  320. struct snd_pcm_sw_params {
  321. int tstamp_mode; /* timestamp mode */
  322. unsigned int period_step;
  323. unsigned int sleep_min; /* min ticks to sleep */
  324. snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */
  325. snd_pcm_uframes_t xfer_align; /* xfer size need to be a multiple */
  326. snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */
  327. snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */
  328. snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */
  329. snd_pcm_uframes_t silence_size; /* silence block size */
  330. snd_pcm_uframes_t boundary; /* pointers wrap point */
  331. unsigned char reserved[64]; /* reserved for future */
  332. };
  333. struct snd_pcm_channel_info {
  334. unsigned int channel;
  335. off_t offset; /* mmap offset */
  336. unsigned int first; /* offset to first sample in bits */
  337. unsigned int step; /* samples distance in bits */
  338. };
  339. struct snd_pcm_status {
  340. snd_pcm_state_t state; /* stream state */
  341. struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
  342. struct timespec tstamp; /* reference timestamp */
  343. snd_pcm_uframes_t appl_ptr; /* appl ptr */
  344. snd_pcm_uframes_t hw_ptr; /* hw ptr */
  345. snd_pcm_sframes_t delay; /* current delay in frames */
  346. snd_pcm_uframes_t avail; /* number of frames available */
  347. snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */
  348. snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */
  349. snd_pcm_state_t suspended_state; /* suspended stream state */
  350. unsigned char reserved[60]; /* must be filled with zero */
  351. };
  352. struct snd_pcm_mmap_status {
  353. snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
  354. int pad1; /* Needed for 64 bit alignment */
  355. snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
  356. struct timespec tstamp; /* Timestamp */
  357. snd_pcm_state_t suspended_state; /* RO: suspended stream state */
  358. };
  359. struct snd_pcm_mmap_control {
  360. snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
  361. snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
  362. };
  363. #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */
  364. #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */
  365. #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */
  366. struct snd_pcm_sync_ptr {
  367. unsigned int flags;
  368. union {
  369. struct snd_pcm_mmap_status status;
  370. unsigned char reserved[64];
  371. } s;
  372. union {
  373. struct snd_pcm_mmap_control control;
  374. unsigned char reserved[64];
  375. } c;
  376. };
  377. struct snd_xferi {
  378. snd_pcm_sframes_t result;
  379. void __user *buf;
  380. snd_pcm_uframes_t frames;
  381. };
  382. struct snd_xfern {
  383. snd_pcm_sframes_t result;
  384. void __user * __user *bufs;
  385. snd_pcm_uframes_t frames;
  386. };
  387. enum {
  388. SNDRV_PCM_IOCTL_PVERSION = _IOR('A', 0x00, int),
  389. SNDRV_PCM_IOCTL_INFO = _IOR('A', 0x01, struct snd_pcm_info),
  390. SNDRV_PCM_IOCTL_TSTAMP = _IOW('A', 0x02, int),
  391. SNDRV_PCM_IOCTL_HW_REFINE = _IOWR('A', 0x10, struct snd_pcm_hw_params),
  392. SNDRV_PCM_IOCTL_HW_PARAMS = _IOWR('A', 0x11, struct snd_pcm_hw_params),
  393. SNDRV_PCM_IOCTL_HW_FREE = _IO('A', 0x12),
  394. SNDRV_PCM_IOCTL_SW_PARAMS = _IOWR('A', 0x13, struct snd_pcm_sw_params),
  395. SNDRV_PCM_IOCTL_STATUS = _IOR('A', 0x20, struct snd_pcm_status),
  396. SNDRV_PCM_IOCTL_DELAY = _IOR('A', 0x21, snd_pcm_sframes_t),
  397. SNDRV_PCM_IOCTL_HWSYNC = _IO('A', 0x22),
  398. SNDRV_PCM_IOCTL_SYNC_PTR = _IOWR('A', 0x23, struct snd_pcm_sync_ptr),
  399. SNDRV_PCM_IOCTL_CHANNEL_INFO = _IOR('A', 0x32, struct snd_pcm_channel_info),
  400. SNDRV_PCM_IOCTL_PREPARE = _IO('A', 0x40),
  401. SNDRV_PCM_IOCTL_RESET = _IO('A', 0x41),
  402. SNDRV_PCM_IOCTL_START = _IO('A', 0x42),
  403. SNDRV_PCM_IOCTL_DROP = _IO('A', 0x43),
  404. SNDRV_PCM_IOCTL_DRAIN = _IO('A', 0x44),
  405. SNDRV_PCM_IOCTL_PAUSE = _IOW('A', 0x45, int),
  406. SNDRV_PCM_IOCTL_REWIND = _IOW('A', 0x46, snd_pcm_uframes_t),
  407. SNDRV_PCM_IOCTL_RESUME = _IO('A', 0x47),
  408. SNDRV_PCM_IOCTL_XRUN = _IO('A', 0x48),
  409. SNDRV_PCM_IOCTL_FORWARD = _IOW('A', 0x49, snd_pcm_uframes_t),
  410. SNDRV_PCM_IOCTL_WRITEI_FRAMES = _IOW('A', 0x50, struct snd_xferi),
  411. SNDRV_PCM_IOCTL_READI_FRAMES = _IOR('A', 0x51, struct snd_xferi),
  412. SNDRV_PCM_IOCTL_WRITEN_FRAMES = _IOW('A', 0x52, struct snd_xfern),
  413. SNDRV_PCM_IOCTL_READN_FRAMES = _IOR('A', 0x53, struct snd_xfern),
  414. SNDRV_PCM_IOCTL_LINK = _IOW('A', 0x60, int),
  415. SNDRV_PCM_IOCTL_UNLINK = _IO('A', 0x61),
  416. };
  417. /* Trick to make alsa-lib/acinclude.m4 happy */
  418. #define SNDRV_PCM_IOCTL_REWIND SNDRV_PCM_IOCTL_REWIND
  419. /*****************************************************************************
  420. * *
  421. * MIDI v1.0 interface *
  422. * *
  423. *****************************************************************************/
  424. /*
  425. * Raw MIDI section - /dev/snd/midi??
  426. */
  427. #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0)
  428. enum {
  429. SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
  430. SNDRV_RAWMIDI_STREAM_INPUT,
  431. SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
  432. };
  433. #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
  434. #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
  435. #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
  436. struct snd_rawmidi_info {
  437. unsigned int device; /* RO/WR (control): device number */
  438. unsigned int subdevice; /* RO/WR (control): subdevice number */
  439. int stream; /* WR: stream */
  440. int card; /* R: card number */
  441. unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */
  442. unsigned char id[64]; /* ID (user selectable) */
  443. unsigned char name[80]; /* name of device */
  444. unsigned char subname[32]; /* name of active or selected subdevice */
  445. unsigned int subdevices_count;
  446. unsigned int subdevices_avail;
  447. unsigned char reserved[64]; /* reserved for future use */
  448. };
  449. struct snd_rawmidi_params {
  450. int stream;
  451. size_t buffer_size; /* queue size in bytes */
  452. size_t avail_min; /* minimum avail bytes for wakeup */
  453. unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
  454. unsigned char reserved[16]; /* reserved for future use */
  455. };
  456. struct snd_rawmidi_status {
  457. int stream;
  458. struct timespec tstamp; /* Timestamp */
  459. size_t avail; /* available bytes */
  460. size_t xruns; /* count of overruns since last status (in bytes) */
  461. unsigned char reserved[16]; /* reserved for future use */
  462. };
  463. enum {
  464. SNDRV_RAWMIDI_IOCTL_PVERSION = _IOR('W', 0x00, int),
  465. SNDRV_RAWMIDI_IOCTL_INFO = _IOR('W', 0x01, struct snd_rawmidi_info),
  466. SNDRV_RAWMIDI_IOCTL_PARAMS = _IOWR('W', 0x10, struct snd_rawmidi_params),
  467. SNDRV_RAWMIDI_IOCTL_STATUS = _IOWR('W', 0x20, struct snd_rawmidi_status),
  468. SNDRV_RAWMIDI_IOCTL_DROP = _IOW('W', 0x30, int),
  469. SNDRV_RAWMIDI_IOCTL_DRAIN = _IOW('W', 0x31, int),
  470. };
  471. /*
  472. * Timer section - /dev/snd/timer
  473. */
  474. #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5)
  475. enum {
  476. SNDRV_TIMER_CLASS_NONE = -1,
  477. SNDRV_TIMER_CLASS_SLAVE = 0,
  478. SNDRV_TIMER_CLASS_GLOBAL,
  479. SNDRV_TIMER_CLASS_CARD,
  480. SNDRV_TIMER_CLASS_PCM,
  481. SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
  482. };
  483. /* slave timer classes */
  484. enum {
  485. SNDRV_TIMER_SCLASS_NONE = 0,
  486. SNDRV_TIMER_SCLASS_APPLICATION,
  487. SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */
  488. SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */
  489. SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
  490. };
  491. /* global timers (device member) */
  492. #define SNDRV_TIMER_GLOBAL_SYSTEM 0
  493. #define SNDRV_TIMER_GLOBAL_RTC 1
  494. #define SNDRV_TIMER_GLOBAL_HPET 2
  495. /* info flags */
  496. #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */
  497. struct snd_timer_id {
  498. int dev_class;
  499. int dev_sclass;
  500. int card;
  501. int device;
  502. int subdevice;
  503. };
  504. struct snd_timer_ginfo {
  505. struct snd_timer_id tid; /* requested timer ID */
  506. unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
  507. int card; /* card number */
  508. unsigned char id[64]; /* timer identification */
  509. unsigned char name[80]; /* timer name */
  510. unsigned long reserved0; /* reserved for future use */
  511. unsigned long resolution; /* average period resolution in ns */
  512. unsigned long resolution_min; /* minimal period resolution in ns */
  513. unsigned long resolution_max; /* maximal period resolution in ns */
  514. unsigned int clients; /* active timer clients */
  515. unsigned char reserved[32];
  516. };
  517. struct snd_timer_gparams {
  518. struct snd_timer_id tid; /* requested timer ID */
  519. unsigned long period_num; /* requested precise period duration (in seconds) - numerator */
  520. unsigned long period_den; /* requested precise period duration (in seconds) - denominator */
  521. unsigned char reserved[32];
  522. };
  523. struct snd_timer_gstatus {
  524. struct snd_timer_id tid; /* requested timer ID */
  525. unsigned long resolution; /* current period resolution in ns */
  526. unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */
  527. unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */
  528. unsigned char reserved[32];
  529. };
  530. struct snd_timer_select {
  531. struct snd_timer_id id; /* bind to timer ID */
  532. unsigned char reserved[32]; /* reserved */
  533. };
  534. struct snd_timer_info {
  535. unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
  536. int card; /* card number */
  537. unsigned char id[64]; /* timer identificator */
  538. unsigned char name[80]; /* timer name */
  539. unsigned long reserved0; /* reserved for future use */
  540. unsigned long resolution; /* average period resolution in ns */
  541. unsigned char reserved[64]; /* reserved */
  542. };
  543. #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */
  544. #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */
  545. #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */
  546. struct snd_timer_params {
  547. unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */
  548. unsigned int ticks; /* requested resolution in ticks */
  549. unsigned int queue_size; /* total size of queue (32-1024) */
  550. unsigned int reserved0; /* reserved, was: failure locations */
  551. unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
  552. unsigned char reserved[60]; /* reserved */
  553. };
  554. struct snd_timer_status {
  555. struct timespec tstamp; /* Timestamp - last update */
  556. unsigned int resolution; /* current period resolution in ns */
  557. unsigned int lost; /* counter of master tick lost */
  558. unsigned int overrun; /* count of read queue overruns */
  559. unsigned int queue; /* used queue size */
  560. unsigned char reserved[64]; /* reserved */
  561. };
  562. enum {
  563. SNDRV_TIMER_IOCTL_PVERSION = _IOR('T', 0x00, int),
  564. SNDRV_TIMER_IOCTL_NEXT_DEVICE = _IOWR('T', 0x01, struct snd_timer_id),
  565. SNDRV_TIMER_IOCTL_TREAD = _IOW('T', 0x02, int),
  566. SNDRV_TIMER_IOCTL_GINFO = _IOWR('T', 0x03, struct snd_timer_ginfo),
  567. SNDRV_TIMER_IOCTL_GPARAMS = _IOW('T', 0x04, struct snd_timer_gparams),
  568. SNDRV_TIMER_IOCTL_GSTATUS = _IOWR('T', 0x05, struct snd_timer_gstatus),
  569. SNDRV_TIMER_IOCTL_SELECT = _IOW('T', 0x10, struct snd_timer_select),
  570. SNDRV_TIMER_IOCTL_INFO = _IOR('T', 0x11, struct snd_timer_info),
  571. SNDRV_TIMER_IOCTL_PARAMS = _IOW('T', 0x12, struct snd_timer_params),
  572. SNDRV_TIMER_IOCTL_STATUS = _IOR('T', 0x14, struct snd_timer_status),
  573. /* The following four ioctls are changed since 1.0.9 due to confliction */
  574. SNDRV_TIMER_IOCTL_START = _IO('T', 0xa0),
  575. SNDRV_TIMER_IOCTL_STOP = _IO('T', 0xa1),
  576. SNDRV_TIMER_IOCTL_CONTINUE = _IO('T', 0xa2),
  577. SNDRV_TIMER_IOCTL_PAUSE = _IO('T', 0xa3),
  578. };
  579. struct snd_timer_read {
  580. unsigned int resolution;
  581. unsigned int ticks;
  582. };
  583. enum {
  584. SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */
  585. SNDRV_TIMER_EVENT_TICK, /* val = ticks */
  586. SNDRV_TIMER_EVENT_START, /* val = resolution in ns */
  587. SNDRV_TIMER_EVENT_STOP, /* val = 0 */
  588. SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */
  589. SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */
  590. SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */
  591. SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */
  592. SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */
  593. /* master timer events for slave timer instances */
  594. SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
  595. SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
  596. SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
  597. SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
  598. SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
  599. SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
  600. };
  601. struct snd_timer_tread {
  602. int event;
  603. struct timespec tstamp;
  604. unsigned int val;
  605. };
  606. /****************************************************************************
  607. * *
  608. * Section for driver control interface - /dev/snd/control? *
  609. * *
  610. ****************************************************************************/
  611. #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 4)
  612. struct snd_ctl_card_info {
  613. int card; /* card number */
  614. int pad; /* reserved for future (was type) */
  615. unsigned char id[16]; /* ID of card (user selectable) */
  616. unsigned char driver[16]; /* Driver name */
  617. unsigned char name[32]; /* Short name of soundcard */
  618. unsigned char longname[80]; /* name + info text about soundcard */
  619. unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */
  620. unsigned char mixername[80]; /* visual mixer identification */
  621. unsigned char components[80]; /* card components / fine identification, delimited with one space (AC97 etc..) */
  622. unsigned char reserved[48]; /* reserved for future */
  623. };
  624. typedef int __bitwise snd_ctl_elem_type_t;
  625. #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */
  626. #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */
  627. #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */
  628. #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
  629. #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */
  630. #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
  631. #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
  632. #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
  633. typedef int __bitwise snd_ctl_elem_iface_t;
  634. #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */
  635. #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
  636. #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
  637. #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
  638. #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
  639. #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */
  640. #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
  641. #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
  642. #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0)
  643. #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1)
  644. #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
  645. #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */
  646. #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */
  647. #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */
  648. #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */
  649. #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
  650. #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */
  651. #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */
  652. #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */
  653. #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */
  654. #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */
  655. #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */
  656. #define SNDRV_CTL_ELEM_ACCESS_DINDIRECT (1<<30) /* indirect access for matrix dimensions in the info structure */
  657. #define SNDRV_CTL_ELEM_ACCESS_INDIRECT (1<<31) /* indirect access for element value in the value structure */
  658. /* for further details see the ACPI and PCI power management specification */
  659. #define SNDRV_CTL_POWER_D0 0x0000 /* full On */
  660. #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */
  661. #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */
  662. #define SNDRV_CTL_POWER_D3 0x0300 /* Off */
  663. #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */
  664. #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */
  665. struct snd_ctl_elem_id {
  666. unsigned int numid; /* numeric identifier, zero = invalid */
  667. snd_ctl_elem_iface_t iface; /* interface identifier */
  668. unsigned int device; /* device/client number */
  669. unsigned int subdevice; /* subdevice (substream) number */
  670. unsigned char name[44]; /* ASCII name of item */
  671. unsigned int index; /* index of item */
  672. };
  673. struct snd_ctl_elem_list {
  674. unsigned int offset; /* W: first element ID to get */
  675. unsigned int space; /* W: count of element IDs to get */
  676. unsigned int used; /* R: count of element IDs set */
  677. unsigned int count; /* R: count of all elements */
  678. struct snd_ctl_elem_id __user *pids; /* R: IDs */
  679. unsigned char reserved[50];
  680. };
  681. struct snd_ctl_elem_info {
  682. struct snd_ctl_elem_id id; /* W: element ID */
  683. snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
  684. unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
  685. unsigned int count; /* count of values */
  686. pid_t owner; /* owner's PID of this control */
  687. union {
  688. struct {
  689. long min; /* R: minimum value */
  690. long max; /* R: maximum value */
  691. long step; /* R: step (0 variable) */
  692. } integer;
  693. struct {
  694. long long min; /* R: minimum value */
  695. long long max; /* R: maximum value */
  696. long long step; /* R: step (0 variable) */
  697. } integer64;
  698. struct {
  699. unsigned int items; /* R: number of items */
  700. unsigned int item; /* W: item number */
  701. char name[64]; /* R: value name */
  702. } enumerated;
  703. unsigned char reserved[128];
  704. } value;
  705. union {
  706. unsigned short d[4]; /* dimensions */
  707. unsigned short *d_ptr; /* indirect */
  708. } dimen;
  709. unsigned char reserved[64-4*sizeof(unsigned short)];
  710. };
  711. struct snd_ctl_elem_value {
  712. struct snd_ctl_elem_id id; /* W: element ID */
  713. unsigned int indirect: 1; /* W: use indirect pointer (xxx_ptr member) */
  714. union {
  715. union {
  716. long value[128];
  717. long *value_ptr;
  718. } integer;
  719. union {
  720. long long value[64];
  721. long long *value_ptr;
  722. } integer64;
  723. union {
  724. unsigned int item[128];
  725. unsigned int *item_ptr;
  726. } enumerated;
  727. union {
  728. unsigned char data[512];
  729. unsigned char *data_ptr;
  730. } bytes;
  731. struct snd_aes_iec958 iec958;
  732. } value; /* RO */
  733. struct timespec tstamp;
  734. unsigned char reserved[128-sizeof(struct timespec)];
  735. };
  736. struct snd_ctl_tlv {
  737. unsigned int numid; /* control element numeric identification */
  738. unsigned int length; /* in bytes aligned to 4 */
  739. unsigned int tlv[0]; /* first TLV */
  740. };
  741. enum {
  742. SNDRV_CTL_IOCTL_PVERSION = _IOR('U', 0x00, int),
  743. SNDRV_CTL_IOCTL_CARD_INFO = _IOR('U', 0x01, struct snd_ctl_card_info),
  744. SNDRV_CTL_IOCTL_ELEM_LIST = _IOWR('U', 0x10, struct snd_ctl_elem_list),
  745. SNDRV_CTL_IOCTL_ELEM_INFO = _IOWR('U', 0x11, struct snd_ctl_elem_info),
  746. SNDRV_CTL_IOCTL_ELEM_READ = _IOWR('U', 0x12, struct snd_ctl_elem_value),
  747. SNDRV_CTL_IOCTL_ELEM_WRITE = _IOWR('U', 0x13, struct snd_ctl_elem_value),
  748. SNDRV_CTL_IOCTL_ELEM_LOCK = _IOW('U', 0x14, struct snd_ctl_elem_id),
  749. SNDRV_CTL_IOCTL_ELEM_UNLOCK = _IOW('U', 0x15, struct snd_ctl_elem_id),
  750. SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS = _IOWR('U', 0x16, int),
  751. SNDRV_CTL_IOCTL_ELEM_ADD = _IOWR('U', 0x17, struct snd_ctl_elem_info),
  752. SNDRV_CTL_IOCTL_ELEM_REPLACE = _IOWR('U', 0x18, struct snd_ctl_elem_info),
  753. SNDRV_CTL_IOCTL_ELEM_REMOVE = _IOWR('U', 0x19, struct snd_ctl_elem_id),
  754. SNDRV_CTL_IOCTL_TLV_READ = _IOWR('U', 0x1a, struct snd_ctl_tlv),
  755. SNDRV_CTL_IOCTL_TLV_WRITE = _IOWR('U', 0x1b, struct snd_ctl_tlv),
  756. SNDRV_CTL_IOCTL_TLV_COMMAND = _IOWR('U', 0x1c, struct snd_ctl_tlv),
  757. SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE = _IOWR('U', 0x20, int),
  758. SNDRV_CTL_IOCTL_HWDEP_INFO = _IOR('U', 0x21, struct snd_hwdep_info),
  759. SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE = _IOR('U', 0x30, int),
  760. SNDRV_CTL_IOCTL_PCM_INFO = _IOWR('U', 0x31, struct snd_pcm_info),
  761. SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE = _IOW('U', 0x32, int),
  762. SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE = _IOWR('U', 0x40, int),
  763. SNDRV_CTL_IOCTL_RAWMIDI_INFO = _IOWR('U', 0x41, struct snd_rawmidi_info),
  764. SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE = _IOW('U', 0x42, int),
  765. SNDRV_CTL_IOCTL_POWER = _IOWR('U', 0xd0, int),
  766. SNDRV_CTL_IOCTL_POWER_STATE = _IOR('U', 0xd1, int),
  767. };
  768. /*
  769. * Read interface.
  770. */
  771. enum sndrv_ctl_event_type {
  772. SNDRV_CTL_EVENT_ELEM = 0,
  773. SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
  774. };
  775. #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */
  776. #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */
  777. #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */
  778. #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */
  779. #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */
  780. struct snd_ctl_event {
  781. int type; /* event type - SNDRV_CTL_EVENT_* */
  782. union {
  783. struct {
  784. unsigned int mask;
  785. struct snd_ctl_elem_id id;
  786. } elem;
  787. unsigned char data8[60];
  788. } data;
  789. };
  790. /*
  791. * Control names
  792. */
  793. #define SNDRV_CTL_NAME_NONE ""
  794. #define SNDRV_CTL_NAME_PLAYBACK "Playback "
  795. #define SNDRV_CTL_NAME_CAPTURE "Capture "
  796. #define SNDRV_CTL_NAME_IEC958_NONE ""
  797. #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
  798. #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
  799. #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
  800. #define SNDRV_CTL_NAME_IEC958_MASK "Mask"
  801. #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
  802. #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
  803. #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
  804. #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
  805. /*
  806. *
  807. */
  808. struct snd_xferv {
  809. const struct iovec *vector;
  810. unsigned long count;
  811. };
  812. enum {
  813. SNDRV_IOCTL_READV = _IOW('K', 0x00, struct snd_xferv),
  814. SNDRV_IOCTL_WRITEV = _IOW('K', 0x01, struct snd_xferv),
  815. };
  816. #endif /* __SOUND_ASOUND_H */